function repeat number?

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Le Xuan Thang
Le Xuan Thang on 21 Dec 2020
Commented: Ameer Hamza on 22 Dec 2020
Hi everyone!
I have a problem like this:
a = [1 2 3]
b = [1 2 3]
and I want matrix combine 2 matrix a and b.
Cuppose,It is matrix C and size of C is 9x2 matrix
C = [ 1 1; 1 2; 1 3
2 1; 2 2; 2 3;
3 1;3 2; 3 3]
Does Matlab have any function like this?

Accepted Answer

Ameer Hamza
Ameer Hamza on 21 Dec 2020
Edited: Ameer Hamza on 21 Dec 2020
combvec() from the Deep learning toolbox is most easiest solution
a = [1 2 3]
b = [1 2 3]
C = combvec(a, b).'; % if the order of column is important: C = fliplr(combvec(a, b).');
The other solution is to use ndgrid()
a = [1 2 3]
b = [1 2 3]
[A, B] = ndgrid(a, b);
C = [B(:) A(:)]
  2 Comments
Ameer Hamza
Ameer Hamza on 22 Dec 2020
I am glad to be of help!

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